公开(公告)号：US20240346972A1

公开(公告)日：2024-10-17

申请号：US18439773

申请日：2024-02-13

Applicant: Samsung Display Co., Ltd.

Inventor： DONGWOO KIM ,  KWIHYUN KIM ,  YEONKYUNG KIM

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08

Abstract: A display panel is disclosed that includes a first pixel, a second pixel and an initialization transistor. The first pixel includes a first light emitting element configured to emit light based on a data writing gate signal, an initialization gate signal, a compensation gate signal, an emission signal and a first data voltage. The second pixel includes a second light emitting element configured to emit light based on the data writing gate signal, the initialization gate signal, the compensation gate signal, the emission signal and a second data voltage. The initialization transistor is commonly connected to the first pixel and the second pixel. The initialization transistor is configured to output an initialization voltage to the first pixel and the second pixel in response to the initialization gate signal.

公开(公告)号：US20200235190A1

公开(公告)日：2020-07-23

申请号：US16749617

申请日：2020-01-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DONGWOO KIM ,  Junhyun Park ,  Sungjae Moon ,  Kangmoon Jo

IPC: H01L27/32 ,  G09G3/3266

Abstract: A display apparatus includes a first signal line and a second signal line that each extend on a substrate in a first direction and are spaced apart in a second direction that crosses the first direction; a plurality of first metal patterns spaced apart from each other in the first direction, wherein at least a portion of the first metal patterns overlaps the first signal line and is electrically connected to the first signal line; and a plurality of second metal patterns spaced apart from each other in the first direction, wherein at least a portion of the second metal patterns overlaps the second signal line and is electrically connected to the second signal line, wherein the plurality of first metal patterns and the plurality of second metal patterns are spaced apart in the first direction in a zigzag arrangement.

公开(公告)号：US20180286307A1

公开(公告)日：2018-10-04

申请号：US15704578

申请日：2017-09-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DONGWOO KIM ,  SUNGHWAN KIM ,  KYONGJU SHIN ,  CHEOL-GON LEE ,  SANG-UK LIM

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3283

Abstract: An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.

公开(公告)号：US20240212584A1

公开(公告)日：2024-06-27

申请号：US18503186

申请日：2023-11-07

Applicant: Samsung Display Co., Ltd.

Inventor： YEONKYUNG KIM ,  KWIHYUN KIM ,  DONGWOO KIM

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2300/0861

Abstract: A pixel circuit includes a light emitting element, a first transistor that applies a driving current to the light emitting element, a second transistor that writes a data voltage in response to a write gate signal, a first capacitor connected to a control electrode of the first transistor, a second capacitor including a first electrode connected to the second transistor and a second electrode connected to the control electrode of the first transistor, a third transistor that diode-connects the first transistor in response to a compensation gate signal, a fourth transistor that applies an initialization voltage to the control electrode of the first transistor in response to a first initialization gate signal, and a fifth transistor that transmits the driving current to the light emitting element in response to an emission signal.

公开(公告)号：US20240155772A1

公开(公告)日：2024-05-09

申请号：US18500385

申请日：2023-11-02

Applicant: Samsung Display Co., LTD.

Inventor： DONGWOO KIM ,  SANGHOON PARK ,  MYUNGGIL CHOI

IPC: H05K3/00

CPC classification number: H05K3/0014 ,  H05K2203/15

Abstract: An apparatus for manufacturing a display device comprises: a stage on which a target substrate is disposed and a bending unit configured to bend the target substrate and attach a first portion of the target substrate to a second portion of the target substrate, wherein the bending unit includes a support member extending in a first direction, an adsorption part disposed on the support member and including a first adsorption part and a second adsorption part that adsorb the target substrate, and a first rotation driving part configured to rotate the adsorption part about a rotation axis extending in a second direction intersecting the first direction.

公开(公告)号：US20240123673A1

公开(公告)日：2024-04-18

申请号：US18225195

申请日：2023-07-24

Applicant: Samsung Display Co., LTD.

Inventor： DONGWOO KIM ,  SANGHOON PARK ,  HEE SOO HAN

IPC: B29C53/04 ,  G06T7/00 ,  G06T7/33 ,  G06T7/73

CPC classification number: B29C53/04 ,  G06T7/001 ,  G06T7/337 ,  G06T7/74 ,  B29L2031/3475 ,  G06T2207/30108 ,  G06T2207/30204

Abstract: A method of manufacturing a display device includes: disposing a member having a first alignment mark and a second alignment mark spaced apart from the first alignment mark on a stage; adsorbing the member to an upper surface of the stage; capturing an image of the member with a camera disposed on the stage; comparing a captured phase of the second alignment mark with a first preset phase of the second alignment mark; adsorbing the member to a bending part disposed apart from the stage; and bending the member with the bending part.

公开(公告)号：US20220358878A1

公开(公告)日：2022-11-10

申请号：US17695588

申请日：2022-03-15

Applicant: Samsung Display Co., Ltd. ,  Konkuk University Industrial Cooperation Corp.

Inventor： DONGWOO KIM ,  Joon Ho LEE ,  Kee Chan PARK ,  MINKYU WOO ,  CHONGCHUL CHAI

IPC: G09G3/3225

Abstract: A display apparatus is disclosed, which includes a pixel. The pixel includes first through fifth transistors and a light emitting element. The first transistor includes a control electrode electrically connected to a first node, an input electrode that receives a first power voltage and an output electrode electrically connected to the light emitting element. The second transistor includes a control electrode that receives a scan signal, an input electrode that receives a grayscale data voltage and an output electrode electrically connected to a second node. The third transistor includes a control electrode electrically connected to the second node, an input electrode that receives a reference voltage and an output electrode electrically connected to the first node. The fourth transistor includes a control electrode that receives the scan signal, an input electrode that receives a bias data voltage and an output electrode electrically connected to the first node. The fifth transistor includes a control electrode that receives a sensing control signal, an input electrode that receives an initialization voltage and an output electrode electrically connected to the light emitting element.

公开(公告)号：US20250095574A1

公开(公告)日：2025-03-20

申请号：US18822222

申请日：2024-09-01

Applicant: Samsung Display Co., LTD.

Inventor： YEONKYUNG KIM ,  DONGWOO KIM ,  KWIHYUN KIM

IPC: G09G3/3233

Abstract: A display device includes a plurality of pixels. Each of the plurality of pixels includes a light emitting element, a PWM circuit that controls an emission time of the light emitting element based on a PWM data voltage, a sweep voltage, and a reference voltage, a CCG circuit that provides a constant driving current to the light emitting element based on a constant current data voltage and a power supply voltage, and a connection switch that connects the PWM circuit to the CCG circuit. The light emitting elements substantially simultaneously start emitting light at a start time point of an emission period. In each pixel, the PWM circuit transfers the reference voltage to the CCG circuit through the connection switch at a time point corresponding to a voltage level of the PWM data voltage, and the CCG circuit causes the light emitting element to stop emitting light.

公开(公告)号：US20250087169A1

公开(公告)日：2025-03-13

申请号：US18826486

申请日：2024-09-06

Applicant: Samsung Display Co., LTD.

Inventor： WONJUN LEE ,  KYUNG-HOON KIM ,  KYONGHWAN OH ,  DONGWOO KIM ,  SEHYUN LEE ,  JINJOO HA

IPC: G09G3/3266 ,  G09G3/3233

Abstract: A scan driver includes a plurality of stages sequentially connected to each other. Each of the plurality of stages includes first and second output transistors and first to fourth control transistors. The second control transistor is connected between a second node and a first voltage terminal and to an input terminal and operates in response to a start signal or a previous carry signal provided through the input terminal. Each of the first and second output transistors and the first, third, and fourth control transistors is a first type, and the second control transistor is a second type different from the first type.

公开(公告)号：US20230326408A1

公开(公告)日：2023-10-12

申请号：US18335107

申请日：2023-06-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： DONGWOO KIM ,  SUNGHWAN KIM ,  KYOUNGJU SHIN ,  CHEOL-GON LEE ,  SANG-UK LIM

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/12 ,  G01N11/02 ,  G01N27/416 ,  G01N33/18 ,  H10K59/131 ,  H10K59/121

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/1222 ,  G01N11/02 ,  G01N27/4161 ,  G01N27/4166 ,  G01N33/18 ,  H10K59/131 ,  H10K59/1216 ,  G09G2320/0219 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/7869

Abstract: An organic light emitting display device includes a plurality of pixels. Each of the pixels includes an organic light emitting diode, first to third transistors, a storage capacitor, and a first capacitor. The second transistor includes a gate electrode receiving a first scan signal, a first electrode receiving a data signal, and a second electrode connected to a first electrode of the first transistor. The third transistor includes a gate electrode receiving a second scan signal, a first electrode connected to a second electrode of the first transistor, and a second electrode connected to a gate electrode of the first transistor. The storage capacitor includes a first electrode receiving a power voltage and a second electrode connected to the gate electrode of the first transistor. The first capacitor includes a first electrode connected to the gate electrode of the third transistor and a second electrode receiving the power voltage.